ipython with qtconsole crashes

[andylei]

Windows XP, Python 2.6, ipython 0.11

I just ran "ipython qtconsole". It immediately crashed. This is the post-mortem:

(Moved to gist: https://gist.github.com/1118274 )

[epatters]

I've seen this before, but I can't recall the exact circumstances. What version of PySide or PyQt are you using?

[andylei]

PyQt4.QtCore.PYQT_VERSION
[20] => 264196
PyQt4.QtCore.PYQT_VERSION_STR
[21] => 4.8.4

[andylei]

i also have get this exact same error message on Linux, running Ubuntu 10.10, ipython 0.11, Python 2.6.6

PyQt4 version:
In [3]: QtCore.PYQT_VERSION
Out[3]: 263940
In [4]: QtCore.PYQT_VERSION_STR
Out[4]: '4.7.4'

[epatters]

You don't have PySide installed, right? That is, if you run 'QT_API=pyqt ipython qtconsole', then you get the same result?

Also, what version of Qt do you have? I'm rather surprised that you're seeing this on both platforms (each of which is known to support the qtconsole), so I'm trying to understand what the commonalities are here.

[andylei]

I do have PySide installed on both platforms, and

QT_API=pyqt ipython qtconsole

solved my problems on Linux. haven't gotten a chance to check on Windows.

[epatters]

I was afraid of that. The early versions of PySide have critical bugs that prevent the qtconsole from running. If I recall correctly, PySide version 1.0.3 or greater is required.

We should probably document this somewhere. Sorry for the confusion.

[epatters]

@fperez Where is the proper place to put a note about PySide version requirements?

Come to think of it, it might be better to just raise an error in the Qt importer if a bad version of PySide is being used.

[fperez]

On Mon, Aug 1, 2011 at 8:46 PM, epatters
reply@reply.github.com
wrote:

@fperez Where is the proper place to put a note about PySide version requirements?

The easiest way to have quick updates is the wiki at wiki.ipython.org,
which is a good solution for this kind of fast-changing information.
If you can write something up there, I can also edit the front page of
the main site with a link so it's more easily seen by users.

Come to think of it, it might be better to just raise an error in the Qt importer if a bad version of PySide is being used.

Certainly a good idea for 0.12, though the info on the wiki will help
users of 011.

Cheers,

f